Setts



Dec. 3, 1929. 'E. H. RYON 1,737,688

LOOM FOR WEAVING TERRY FABRIC Filed Oct. 4. 1926 2 Sheets-Sheet 1 v[WW/0r lIapo 1713 00 Dec. 3, 1929. E. H. RYON LOOM FOR WEAVING TERRYFABRIC 2 Sheets-Sheet 2 Filed Oct. 4. 1926 fm mfar Z/IO/OH H1500Patented Dec. 3, 1929 entree stares earner series EPPA H. RYON, FPASADENA, CALIFORNIA, ASSIGNOR TO CROMPTON 86 KNOWLES LOOIl-I-\IVOIB-KS, OF WORCESTER, MASSACHUSETTS, A. CORPORATION 03 MASSACE U-LOOM FOE VIEAVING TERRY FABRIC Application filed October 4, 1926. SerialNo. 139,308.

This invention relates to looms for weaving terry fabrics and it is theprincipal object of the invention to provide a motion which will permitthe formation of relatively high terry loops.

Much of the terry fabric which has been produced heretofore has beenmade on looms wherein the reed assumed two different positions when thelay was in its extreme forward position, the reed being rearward for twoor three picks and being moved forwardly the third or fourth pickdepending upon whether the fabric being woven was three or four pickterry. It has also been proposed to produce terry by causing the laytomovc through two different ranges of movement so far as its extremeforward position is concerned, the reed being secured rigidly to thelay. I find that both of these constructions are inadequate because ofthe lack of strength to weave fabrics requiring relatively high pile andit is a further object of my invention to provide mechanism for moving aportion of the warp and fabric rearwardly on pile forming picks, the laymoving at all times through a fixed'range of motion.

It is a more particular object of my invention to accomplish thebackward and forward movement of a portion of the fabric and warp bymeans of a toggle joint controlled from the pattern mechanism so thatthe weaving of terry can be terminated and the formation of the headingbegun at any desired point in the length of the fabric.

It is a further object of my invention to provide a loom of the typespecified wherein the picking-out operation due to a mispick will befacilitated. To accomplish this result one of the parts of the togglewhich controls the position of the whip roll can be moved manually atthe time of the picking-out to facilitate this operation and also tomove the cloth backwardly. It is a still further object of my inventionto provide an improved form of cloth board movable about a fixed centeranclmovable in unison with the whip roll backwardly and forwardly.

With these and other objects in view which will appear as thedescription proceeds, my

invention resides in the combination and arrangement of partshereinafter described and set forth in the claims.

In the accompanying drawings wherein I have shown a convenientembodiment of my mvention,

Fig. 1 is a side elevation of a loom having my invention applied theretowith the parts in position to weave a heading or on the pile formingbeat of the loom, parts being in section,

Fig. 2 is a top plan view of the construction shown in Fig. 1, parts ofthe loom frame being in section,

Fig. 3 is a view similar to Fig. 1 but with the parts in the positionthey assume prior to the pile forming beat of the loom,

Fig. 4 is an enlarged detail side elevation of the controlling part ofthe mechanism with the parts in position for weaving a heading and Fig.5 is an enlarged horizontal section on line 55 of Fig. 3.

Referring to the drawings it will be seen that I have provided a loomframe 10 having two loomsidcs 11 connected together at the forward endthereof by a breast beam 12 and supporting therebctween a cloth roll 13and a warp beam 14. The lay 15 may be of the usual construction andmoves back and forthtoward and from the breast beam 12 in a fxed rangeof n'iovemcnt. here extends between the loomsides the usual top andbottom shafts 16 and 17, respectively, which are driven in timedrelation. The botton'i shaft is provided with a gear 18 meshing with agear 19 rotatably mounted on a stub shaft 20, the ratio of the gears 18and 19 determining the character of the pile fabric, in this instancegear 19 being twice the'diameter of gear 18 so that the loom will have apile formmg movement every fourth pick during the time the terry isbeing woven.

As shown in Fig. 5 the gear 19 may have cast integrally therewith on oneside a cam groove 21 which receives a roll 22 mounted on the forward endof a lever 93 secured to a rock shaft 2e!c mounted on the looinsides. inarm 25 fast on shaft 24; is slotted to receive a stud 26 secured in theslot in adjusted position by means of a nut 27. An upright link 28 ispivoted on stud 26 and has the lower end thereof connected to a spring29 the forward end of which is fixed so as to tend nor mally to move theupper end of the link 28 rearwardly.

-A cross rod 30 is rotatably mounted in loomsides 11 and has mounted onone end thereof, preferably outside one of the loomsides, a rockinglever 31 the rear end of which is provided with a stud 32 located in aslot 33 formed in the upper end of link 28. The slot 33 is provided witha forwardly extending offset or notch 34 in which the stud 32 is locatedwhile terry fabric is being woven.

A whip roll 35 over which the warp WV passes has depending arms 36 whichare pivoted as at 37 to brackets 38. The forward and backward positionsof the whip roll are determined by links 39 which are pivotallyconnected to the whip roll by gudgeons 40. One of said links ispivotally connected to the rocker lever 31 as at 41 and the link on theother side of the loom is pivotally connected to an arm 42 secured tothe cross shaft 30 by a stud 43 (see Fig. The pivots 41 and 43 lie atequal distances from the axis of the cross shaft 30 and the links 39 areof the same length so that a uniform motion of the whip roll is insured.

A flexible connector 44 is attached as at 45 to the link 28 and isguided around asheave 46 upwardly to a pattern controlled lever 4"?pivoted as at 48 to fixed structure (not shown) and controlled asto'vertical position by a pattern chain 49. The lever 47, pivot 48 andchain 49 are shown diagrammatically and may be similar to box motioncontrolling levers.

The mechanism at the front of the loom for supporting the clothcomprises a rod 50 mounted on fixed brackets 51 to extend between theloomsides 11 and there is pivotally mounted on said rod a cloth guideformed of sheet metal as shown in Fig. 1 with. the lower portion turnedaround the rod 50 as at 53 and an upper rounded portion 54 over whichthe cloth passes. Said cloth guide is pivoted on the rod 50 and ispositioned by a series of plungers 55 passing through the breast beam12. In order to control the plunger-s there is arovided an oscillatingshaft 56'mounted on supports 57 and having one end thereof secured to alever 58 the lower end of which has adjustable connection as at 59 witha rod 60. Said oscillating shaft has a plurality of upstanding arms 61secured thereto, there being one arm for each plunger 55, as shown inFig. 2. The rear end of rod is adjustably and pivotally connected to therocker lever 31 as at 62 so that the whip roll and cloth support willmove together.

A stop screw 63 is located in the bracket 38 to limit downward movementof the rocking lever 31 when a heading is being woven and a second stopscrew 64 is positioned to engage the arm 36 to limit forward movement ofthe whip roll 35.

In operation the bottom shaft 17 makes a complete revolution everysecond pick of the loom and causes the cam 31 to complete a revolutionevery four picks. This results in a down motion of link 28 every fourthpick, a position corresponding to that shown in Fig. 1. lVhen in thisposition the pivots 30, 40, and 41 will be practically in a straightline so that the toggles of which links 39' form a part will bepractically straight, a condition which corresponds to the rearmostlocation of the whip roll 35 and arms 61. The cloth support 52istherefore free to move rearwardly and the warp and cloth are movedpositively toward the reed R by the action of the toggle.

On the next pick when the position of the cam lever 23 has been shiftedto that shown in Fig. 3 the link 28 will have been raised so that thewhip roll 35 will now be in its foremost position with the arms 61pushing the plungers 55 forwardly. Said plungers carry the cloth support52 forwardly and the fell of the cloth or the last pick which wasbeateninto the fabric will lie forwardly of the extreme forwardposition. of the reed R. The parts will remain in this position (shownin Fig. 3) for three picks, after which they will again return to theposition shown in Fig. 1 so that the three picks of filling laid whenthe cloth was in forward position will bind the pile warps and causethem to loop to form terry as said three picks are moved rearwardly bythe action of the whip roll 35.

l/Vhen the weaving of terry is to be stopped to weavea heading the lever47 will be raised by the pattern chain 49 to cause the stud 32 to moveout of the notch 34 and the link 28 will move up and'down idly withoutaffecting the position of the whip roll and cloth support. It is to beunderstood that the moving of the link 28 from the operative to theinoperative position indicated in Fig. 4 comes at a time when the stud41 is below the line joiningthe axis of the whip roll and the crossshaft 30 so that the whip roll can be locked in rear position. Screw 63engages lever 31' to limit downward movement thereof, thus assistinginholding. the parts in locked position.

From the foregoing. it will be seen that I have provided a very strong.and durable mechanism for moving a portion of the warp and clothrelatively to the reed in order to form terry the motion including. atoggle joint operable under control of the pattern mechanism by aregularly moving cam which positively raises and lowers the link 28 sothat the position of the fell of the cloth is always definitely located,this position being accomplished without the use of springs or otheryielding devices which have been proposed heretofore but which areuncertain in placing the fell of the cloth. It will furthermore be seenthat I have provided an improved form of cloth board the lower end ofwhich is firmly attached to fixed structure and the upper end of whichis movable to accommodate the pile forming operation of the loom, thecloth board serving to direct the cloth to the take up roll whetherterry or plain fabric is being woven. It will further be seen that bybreaking the toggle by hand the whip roll can be moved forwardly tofacilitate the withdrawing of mispicks, the ability to release the whiproll being independent of the position of the cam 21.

Having thus described my invention, it will be apparent that changes andmodifications may be made therein by those skilled in the art withoutdeparting from the spirit and scope of the invention, and I do not wishto be limited to the details herein disclosed but what I claim is:

1. In a loom for weaving terry pile fabric having a lay moving through afixed range of action, a Whip roll for the Warp, a cloth board for thewoven fabric, and means defining a toggle joint operativcly connected tothe loom frame and the whip-roll to move the latter rearwardlypositively on selected beats of the loom.

2. In a loom for weaving terry pile fabric having a lay moving through afixed range of action, a whip roll for the warp, a guide for the wovenfabric, means to move said whip roll and guide in unison backwardly andforwardly relatively to the fixed range of action of the lay, said meansincluding a toggle joint a portion of which is attached to a fixed partof the loom and another portion of which is attached to the whip roll,and a member receiving a reciprocation at periodic intervals to act onsaid toggle joint to cause the same to move the whip roll backwardly andforwardly.

3. In a loom for weaving terry pile fabric having a lay moving through afixed range of action, a whip roll for the warp, a guide for the wovenfabric, means to cause the whip roll and guide to move in unisonbackwardly and forwardly relatively to the fixed range of action of thelay, mechanism defining a toggle joint a portion of which is connectedto the loom and another portion of which is attached to said means, anda regularly moving device to actuate the toggle to cause said means tomove the whip roll and cloth guide at periodic intervals.

t. In a loom for weaving terry pile fabric having a lay moving through afixed range of action, a whip roll, a cloth guice, a regularly movingactuator, a toggle joint to be operated by the actuator and operativelyconnected to the whip roll to cause the same to move rela tively to thefixed range of action of the lay, and pattern controlled means todisconnect the regularly moving means from the toggle.

5. In a loom for weaving terry pile fabric having a lay moving through afixed range of action, a whip roll, a cloth board, a regularly movingactuator having a slot therein and a notch communicating with the slot,mechan ism constituting a toggle joint interposed between a fixed partof the loom and the whip roll and having a portion to enter the slot ofthe actuator, said portion when in the notch serving to actuate thetoggle at periodic intervals to move the whip roll relatively to thefixed range of action of the lay periodically, and pattern mechanism tomove said actuator relatively to said portion to the end that theactuator may move idly with said portion in the slot an (1 out of thenotch.

6. In a loom for weaving terry pile fabric having a lay moving through afixed range of action, a whip roll having a warp yarn engaging surfaceand mounted to move about an axis eccentric with respect to the saidsurface, a pair of links constituting a toggle joint attached in part tothe whip roll and in part to a fixed part of the loom, an actuator forthe toggle operatively connected to one of the links to operate saidtoggle periodically to more the whip roll relatively to the fixed rangeof action of the lay, said actuating means being movable out ofactuating position with respect to the link connected thereto and one ofsaid links being manually movable to effect a movement of the whip rollfelatively to the fixed range of action of the 7. In a loom for weavingterry pile fabric having a lay moving through a fixed range of action,means to move the warp backwardly and forwardly relatively to the fixedrange of movement of the lay, a take-up roll for the cloth, a clothboard to direct the cloth to the take-up roll, and means movable inunison with the means for moving the whip roll to move said cloth board,said cloth board being formed of a piece of sheet metal having an upperrounded edge to receive the fabric and a pivoted support for the lowerend adjacent the take-up roll.

8. In a terry loom having a lay moving through a fixed range of action,a whip roll, a cloth board for the woven cloth, means to cause the rolland board to move in unison, an actuator having positive regularmovements in opposite directions during operation of the loom,connections between the actuator and roll and board to cause theactuator to move the whip roll and cloth board positively in oppositedirections relatively to the range of action of the lay, patternmechanism, and an element in said connections under control of thepattern mechanism to disconnect the actuator from the roll and board.

9. In a terry loom having a lay moving through a fixed range of action,a whip roll, a cloth board for the woven cloth means to cause the rolland board to move in unison, a

track cam having a regular motion, an operating member operativelyconnected at all times to the cam and moved by the latter positively inopposite directions relatively to the range of action of the lay,pattern mechanism,

and means under control of the pattern mech anism to disconnect theoperating member from the roll and board to render the roll and boardinactive as the operating member continues'to operate.

10. In a terry loom having a lay moving through a fixed range of action,a Whip roll, a cloth board for the woven cloth, means to cause the rolland board to move in unison relatively to the fixed range 01 action ofthe lay, a regularly moving cam, a reciprocating operating memberactuated by the cam to move positively in opposite directions, patternmechanism, means defining a pin and slot connection between theoperating member and the whip roll, to cause said whip roll and clothboard to move positively under action of the cam in opposite di*ections, and a device between the pattern mechanism and the meansdefining a pin and slot connection to render the latter inoperative totransmit motion from the cam to the roll and board, whereby the whiproll and cloth board may remain at restwhile the operatin memberreciprocates under the action of the cam.

l1. Ina terry loom having a lay moving through a fixed range of action,a whip roll, a cloth board for the woven cloth, means to cause the rolland board to move in unison,

Y a reciprocating operating member operatively connected to the cam andactuated by the latter positively in opposite directions, an operatingmember having a slot therein from which laterally extends a notch, pinto be received by the slot and notch and operatively connected to thewhip roll, said pin normally being located in. the notch to transmitmotion of the cam to the whip roll and cloth board to cause the latterdevices to move positively in opposite directions, pattern mechanism,and connections between the pattern mechanism and the operating memberto move the latter relatively to the pin to cause the latter to registerwith the slot in the operating member, whereby said whip roll and clothboard may remain at rest while the operating member continues to moveunder influence of the cam.

12. In a terry loom having a lay moving tive mot-ion of the actuatingmember to the Whip roll and cloth board, and connections from thepattern mechanism to one of said members to move the same relatively tothe other member and cause the pin to move into the slot, whereby thewhip roll and cloth board may remain at rest while the operating memberreciprocates positively.

13. In a terry loom having a lay moving through a fixed range of action,a whip roll, a cloth board for the woven cloth, means to cause the rolland board to move in unison, an actuating member moving positively inopposite directions, a second member, a slot in one member extendingsubstantially parallel to the direction of movement of the first namedmember, there being a notch er:- tending laterally from the slot, a pinin the other member normally located in the notch to cause positivemovements in opposite directions of the whip roll and cloth boardrelatively to therange of action of the lay as the operating membermoves in opposite directions, pattern mechanism, and means controlled bythe pattern mechanism to move the pin and member having the slotrelatively to each other to move the pin out of the notch into theslotted member, whereby the roll and cloth board may remain at restwhile the operating member moves positively in opposite directions.

In testimony whereof I have hereunto attired my signature.

EPPA H. RYON.

